import * as am5 from "@amcharts/amcharts5";
import * as am5xy from "@amcharts/amcharts5/xy";
import am5themes_Animated from "@amcharts/amcharts5/themes/Animated";
import data from "./data.json";


// Create root element
// https://www.amcharts.com/docs/v5/getting-started/#Root_element
const root = am5.Root.new("chartdiv");


// Set themes
// https://www.amcharts.com/docs/v5/concepts/themes/
root.setThemes([
  am5themes_Animated.new(root)
]);

// Specify date fields, so that they are formatted accordingly in tooltips
// https://www.amcharts.com/docs/v5/concepts/formatters/data-placeholders/#Formatting_placeholders
root.dateFormatter.setAll({
  dateFields: ["valueX"]
});


// Create chart
// https://www.amcharts.com/docs/v5/charts/xy-chart/
const chart = root.container.children.push(am5xy.XYChart.new(root, {
  panX: false,       // dragging the plot does not pan: the cursor uses the drag to zoom
  panY: false,
  wheelX: "panX",    // a sideways wheel or trackpad swipe moves along the dates...
  wheelY: "zoomX"    // ...and the vertical wheel zooms in on them
}));


// Add cursor
// https://www.amcharts.com/docs/v5/charts/xy-chart/cursor/
const cursor = chart.set("cursor", am5xy.XYCursor.new(root, {
  behavior: "zoomX" // drag across the plot to zoom in on those days
}));
cursor.lineY.set("visible", false); // only the vertical line that follows the dates


// Create axes
// https://www.amcharts.com/docs/v5/charts/xy-chart/axes/
const xAxis = chart.xAxes.push(am5xy.DateAxis.new(root, {
  maxDeviation: 0.5,          // panning can go up to half a view past the first or last day
  baseInterval: {             // one data point per day
    timeUnit: "day",
    count: 1
  },
  renderer: am5xy.AxisRendererX.new(root, {
    minorGridEnabled: true,   // fainter grid lines between the labelled ones
    pan: "zoom"               // drag along the date labels to zoom in or out
  }),
  tooltip: am5.Tooltip.new(root, {}) // shows the cursor's date on the axis
}));

const yAxis = chart.yAxes.push(am5xy.ValueAxis.new(root, {
  maxDeviation: 1,            // panning can go past the highest or lowest value by up to a full view
  renderer: am5xy.AxisRendererY.new(root, {
    pan: "zoom"               // drag along the value labels to stretch or squeeze the scale
  })
}));


// Add series
// https://www.amcharts.com/docs/v5/charts/xy-chart/series/
const series = chart.series.push(am5xy.LineSeries.new(root, {
  name: "Series",
  xAxis: xAxis,
  yAxis: yAxis,
  valueYField: "value",
  valueXField: "date",
  tooltip: am5.Tooltip.new(root, {
    labelText: "{valueX}: {valueY}" // date and value, e.g. "2024-01-15: 104"
  })
}));


// Add scrollbar
// https://www.amcharts.com/docs/v5/charts/xy-chart/scrollbars/
// above the plot: drag its ends to zoom, or its middle to move along the dates
chart.set("scrollbarX", am5.Scrollbar.new(root, {
  orientation: "horizontal"
}));


// Set data
// https://www.amcharts.com/docs/v5/charts/xy-chart/series/#Setting_data
series.data.setAll(data);


// Make stuff animate on load
// https://www.amcharts.com/docs/v5/concepts/animations/#Forcing_appearance_animation
series.appear(1000);
chart.appear(1000, 100);